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BOSTON MARATHON 2023

Silvia Daza Morales

Bib: 12194•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 39%
Gender (Female)
#0 / 11423
Top 20%
Masters (Masters Women)
#0 / 6539
Top 9%
Division (F45-49)
#0 / 1817
Top 9%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:57/mi
24:43
↑ 97↓ 3451.5%
10K· 6.21 mi
7:48/mi
48:57
↑ 79↓ 1380.4%
15K· 9.32 mi
7:39/mi
1:12:44
↑ 67↓ 78
20K· 12.43 mi
7:44/mi
1:36:45
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:42:01
↑ 19↓ 370.5%
25K· 15.53 mi
7:51/mi
2:01:04
↑ 66↓ 880.2%
30K· 18.64 mi
8:04/mi
2:26:07
↑ 181↓ 1480.2%
20M
8:05/mi
2:37:06
↑ 64↓ 500.2%
21M
8:13/mi
2:45:19
↑ 106↓ 241.6%
35K· 21.75 mi
7:44/mi
2:51:06
↑ 17↓ 861.7%
23M
7:54/mi
3:00:59
↑ 23↓ 630.6%
24M
7:18/mi
3:08:17
↓ 821.3%
40K· 24.85 mi
7:26/mi
3:14:38
↓ 200.3%
25.2M
7:41/mi
3:17:17
↑ 13↓ 160.2%
Finish· 26.22 mi
6:36/mi
3:24:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:42:01
Pace7:47 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:42:00
Pace7:47 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:2824:437:5724:43
7:57
-
10K
6.21 mi11:16:4248:577:5324:14
7:48
-0:09
15K
9.32 mi11:40:291:12:447:4823:47
7:39
-0:09
20K
12.43 mi12:04:301:36:457:4724:01
7:44
+0:05
Half
13.11 mi12:09:461:42:017:475:16
7:43
-0:01
25K
15.53 mi12:28:492:01:047:4819:03
7:51
+0:08
30K
18.64 mi12:53:522:26:077:5025:03
8:04
+0:13
20M
20.00 mi13:04:512:37:067:5110:59
8:05
+0:01
21M
21.00 mi13:13:042:45:197:528:13
8:13
+0:08
35K
21.75 mi13:18:512:51:067:525:47
7:44
-0:29
23M
23.00 mi13:28:443:00:597:529:53
7:54
+0:10
24M
24.00 mi13:36:023:08:177:517:18
7:18
-0:36
40K
24.85 mi13:42:233:14:387:506:21
7:26
+0:08
25.2M
25.20 mi13:45:023:17:177:502:39
7:41
+0:15
Finish
26.22 mi13:51:463:24:017:476:44
6:36
-1:05

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:36 /mi

Average Pace

7:47 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

20:23

10% of race

Time at Steady Pace

1:54:40

56% of race

Time at Slower Pace

1:08:58

34% of race

Average Pace: 7:47 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:52:2824:437:5724:43
7:57
#13695
10K
6.21 mi11:16:4248:577:5324:14
7:48
#13403
15K
9.32 mi11:40:291:12:447:4823:47
7:39
#12714
20K
12.43 mi12:04:301:36:457:4724:01
7:44
#12264
Half
13.11 mi12:09:461:42:017:475:16
7:43
#12249
25K
15.53 mi12:28:492:01:047:4819:03
7:51
#12132
30K
18.64 mi12:53:522:26:077:5025:03
8:04
#11923
20M
20.00 mi13:04:512:37:067:5110:59
8:05
#11818
21M
21.00 mi13:13:042:45:197:528:13
8:13
#11623
35K
21.75 mi13:18:512:51:067:525:47
7:44
#11551
23M
23.00 mi13:28:443:00:597:529:53
7:54
#11380
24M
24.00 mi13:36:023:08:177:517:18
7:18
#11122
40K
24.85 mi13:42:233:14:387:506:21
7:26
#10881
25.2M
25.20 mi13:45:023:17:177:502:39
7:41
#10751
Finish
26.22 mi13:51:463:24:017:476:44
6:36
#10361
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi136953837383711474(Top 43%)2613(Top 23%)2613(Top 144%)
10K6.21 mi3.10 mi13403+2923681+1563681+15613117(Top 49%)3497(Top 31%)3497(Top 192%)
15K9.32 mi3.11 mi12714+6893289+3923289+39211474(Top 43%)2613(Top 23%)2613(Top 144%)
20K12.43 mi3.11 mi12264+4503070+2193070+21911151(Top 42%)2484(Top 22%)2484(Top 137%)
Half13.11 mi0.68 mi12249+153065+53065+512043(Top 45%)2921(Top 26%)2921(Top 161%)
25K15.53 mi2.42 mi12132+1173013+523013+5211577(Top 43%)2810(Top 25%)2810(Top 155%)
30K18.64 mi3.11 mi11923+2092937+762937+7611387(Top 43%)2838(Top 25%)2838(Top 156%)
20M20.00 mi1.36 mi11818+1052890+472890+4710895(Top 41%)2675(Top 23%)2675(Top 147%)
21M21.00 mi1.00 mi11623+1952803+872803+878736(Top 33%)1821(Top 16%)1821(Top 100%)
35K21.75 mi0.75 mi11551+722773+302773+3010179(Top 38%)2448(Top 21%)2448(Top 135%)
23M23.00 mi1.25 mi11380+1712707+662707+669065(Top 34%)2067(Top 18%)2067(Top 114%)
24M24.00 mi1.00 mi11122+2582588+1192588+1196423(Top 24%)1062(Top 9%)1062(Top 58%)
40K24.85 mi0.85 mi10881+2412493+952493+956297(Top 24%)1093(Top 10%)1093(Top 60%)
25.2M25.20 mi0.35 mi10751+1302442+512442+514911(Top 18%)718(Top 6%)718(Top 40%)
Finish26.22 mi1.02 mi10361+3902278+1642278+1643056(Top 11%)303(Top 3%)303(Top 17%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

11474

Females

2613

F45-49

2613

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13117

Females

3497

F45-49

3497

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

11474

Females

2613

F45-49

2613

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

11151

Females

2484

F45-49

2484

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

12043

Females

2921

F45-49

2921

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

11577

Females

2810

F45-49

2810

25K→30K

15.5 - 18.6 mi

Top 43%
×9story building
+181ft-148ft

Overall

11387

Females

2838

F45-49

2838

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

10895

Females

2675

F45-49

2675

20M→21M

20.0 - 21.0 mi

Top 33%
×8story building
+106ft-24ft

Overall

8736

Females

1821

F45-49

1821

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

10179

Females

2448

F45-49

2448

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

9065

Females

2067

F45-49

2067

23M→24M

23.0 - 24.0 mi

Top 24%
×6story building
+12ft-82ft

Overall

6423

Females

1062

F45-49

1062

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6297

Females

1093

F45-49

1093

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

4911

Females

718

F45-49

718

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2story building
+22ft-21ft

Overall

3056

Females

303

F45-49

303

Passing Analysis

Category:
Athletes Passed
3858
Passed By
524
Net Change
+3334
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13695
5K → 10K473181+292#13695#13403
10K → 15K72031+689#13403#12714
15K → 20K47525+450#12714#12264
20K → Half3823+15#12264#12249
Half → 25K18063+117#12249#12132
25K → 30K30394+209#12132#11923
30K → 20M14439+105#11923#11818
20M → 21M21419+195#11818#11623
21M → 35K9624+72#11623#11551
35K → 23M19524+171#11551#11380
23M → 24M2591+258#11380#11122
24M → 40K2410+241#11122#10881
40K → 25.2M1300+130#10881#10751
25.2M → Finish3900+390#10751#10361
TOTALS3858524+3334
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing